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Uploaded on Monday 11 Mar 2013 by GRID-Arendal

Great apes population estimates

Year: 2013 Author: Riccardo Pravettoni, GRID-Arendal
Description:
All great ape species have experienced considerable declines in population size and range over the past few decades. The International Union for Conservation of Nature (IUCN) Red List of Threatened Species lists all of the great apes as either Endangered or Critically Endangered and all great apes except the Mountain gorillas show decreasing population trends. Most notably, fewer than 300 Cross River gorillas are left in West Africa; as few as 2,000 Eastern Lowland gorillas remain; and it is believed that as few as 6,600 Sumatran orangutans can be found in the wild.
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Orangutan range and population estimates
Main international routes for the illegal trafficking of great apes
Great apes range in Africa
Great ape illegal trafficking “tariffs”